stringWithFormat和NSArray

Question

我有一个带有对象的NSArray：

NSArray *array = [NSArray arrayWithObjects:@"Saturday",@"Sunday",@"Monday",@"tuesday",@"Wednesday",@"thursday",nil]; 

有时就像这样：

array = [NSArray arrayWithObjects:@"Tuesday",@"Monday",nil];

我想要一个这样的字符串：

dinner : sunday, monday,tusday, wednesday, thurs...

或

dinner : tuesday, monday.

我怎样才能用stringWithFormat做到这一点呢？

谢谢

Answer 1

使用NSArray的componentsJoinedByString:。

NSArray *array = [NSArray arrayWithObjects:@"Saturday",@"Sunday",@"Monday",@"tuesday",@"Wednesday",@"thursday",nil];
NSString *string = [NSString stringWithFormat:@"dinner: %@", [array componentsJoinedByString:@", "]];

Answer 2

NSString *string = [NSString stringWithFormat:@"Dinner: %@",[array componentsJoinedByString:@","]];